Takes any vector of languages and returns links to glottolog pages.
Examples
url.lang('Korean')
#> [1] "<a href='https://glottolog.org/resource/languoid/id/kore1280' target='_blank'>Korean</a><br>"
url.lang(c('Gangou', 'Hachijo', 'West Circassian', 'Ganai'))
#> [1] "<a href='https://glottolog.org/resource/languoid/id/gang1272' target='_blank'>Gangou</a><br>"
#> [2] "<a href='https://glottolog.org/resource/languoid/id/hach1239' target='_blank'>Hachijo</a><br>"
#> [3] "<a href='https://glottolog.org/resource/languoid/id/adyg1241' target='_blank'>West Circassian</a><br>"
#> [4] "<a href='https://glottolog.org/resource/languoid/id/gana1278' target='_blank'>Ganai</a><br>"